Of albany



(No Model.)

J. H. SEWAL-L. GAR HEATING APPARATUS.

No. 445,090. Patented Jan. 20,1891.

JAMES ll. SEIVALL, Ol PORTLAND, MAINE, ASSIGNOR TO THE CONSOLI- DATEDCAR HEATING COMPANY OF VEST VIRGINIA, OF ALBANY,

NEW YORK.

CAR-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 445,090, dated January20, 1891.

Application filed January '7, 1889 Serial No. 295,647- (No model.)

To (all who/1t it may concern.-

Be it known that 1, JAMES H. SEwAnL, of Portland, county of Cumberland,State of Maine, have invented an Improvement in Cz'ir lleatingApparatus, of which the follow ing description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object toimprove the construction ofapparatus employed for heating cars.

The invention herein shown is an improvement on the car-heatingapparatus invented by John 13. Porter, yet is applicable to otherheating apparatus wherein two heaters are employed to heat the water fora common set of circulation-pipes.

In ear-heating apparatus of the kind referred to comprising a set ofwater-circulation pipes within the car and two heaters for heating thesame independently or simultaneously at will valves have been interposedbetween the heaters, so as to control the water in its passage.

In accordance with this invention a simple device is provided in lieu ofsuch valves, which requires no attention and which simply givesdirection tothe current, thereby aecomplishing the desired end.

The device herein shown for giving direction to the current comprises ashell or case having a passage through it from end to end and a pipeleading into said shell at one side or formed integral with it, saidpipe being bent or formed at a right angle, so that water passingthrough the pipe will be directed in the direction to which said pipe isturned, yet at the same time afree passage is afforded for the waterdirectly through the shell.

Figure 1 shows in elevation and partial section a car-heating apparatusprovided with a director for the warming-liquid embodying thisinvention; Fig. 2, a vertical section of the director 011 a larger scale5 Fig. 3, a plan View of the controlling'valve of the car-heatingapparatus.

The car-heating apparatus herein shown, to which my invention isapplied, comprises a system of water or other liquid-circulating pipesa, an expansioirchamber b, and two heating-coils or communicatingportions of the piping c (I, one of the said coils being contained in aheater (7 (see dotted lines, in which a tire may be kindled, and theable inclosing case (1 into which steam is admit-ted by a pipe e,leading from a main steam-pipe c. The coils c d are joined to thecirculating-pipes a at the lower end by a T- coupliug j, and at theupper end by a current director g. (Best shown in Fig.2.) Theenrrent-director g compriscsa shell or case havin g a passage g throughit, and a curved pipe is contained within the shell or case, beingformed integral therewith, said pipe having an inlet at one side of theshell or case and bent up within and parallel to said passage to form anoutlet considerably above said inlet.

In operation, the water heated, fol-instance, in the coil 0 passesupwardly through the passage 9 of the shell or case 9 to theexpansion-tank, thence through the circulatingpipes returning to thecoil, and when the coil cl is heated the liquid passes upwardly throughthe curved pipe g to the expansiondrum, thence through thecirculating-pipes, returning to the coil d; or both coils may besimultaneously heated and the liquid contained therein passed throughthe current-director. By the employment of a current-director the liquidrising from the coil (Z will not ci reulate through the coil 0, andthereby sh0rtcircuit the circulation-pipe, or vice versa, as thedirection given it by thcupturncd end of the pipe 5 is sui'iieient tocause it to i'lowupward to the expansion-drum Z); also it will be seenthat a current-director fulfills all the requirements, cannot get out oforder, and requires no attention whatever.

I do not desire to limit myself to the use of the current-director tothe particular system of car-heating apparatus herein shown, as anyindependent arrangement or location of the heaters c and d may beemployed and the function and operation of the current-director remainthe same.

I claim 1. In a car-heating apparatus, a system of circulating-pipeswithin the car and two in otheincoil, as (I, being contained in asuitdependent heaters, both in operative contact with said circulatingsyste1n,adapted to be operated simultaneously or separately by heatimparted thereto, combined with a current-director interposed at thejunction or point of contact of the said heaters and circulating system,substantially as described.

2. In a car-heating system, the combination, with a system ofWater-circulating" pipes within the car, of a suitable radiator incontact With said circulating system, mechanism for supplying the saidradiator with steam as a primary means of heating said circulatingsystem, and a secondary independent heater also in operative contact orconnected with said circulating system and adapted to heatihe same,combined with a current-director, substantially as described, interposedat the junction or point of contact of the primary and secondaryheaters, and the circulatingpipes, substantially as described.

In a car-heating system, the combination, with a system ofcirculating-pipes within the car and two independent heaters inoperative contact with said circulating system, each having exposedradiating-s11rfaces, one of the said heaters being adapted to contain afire and the other to receive steam, combined with a current-director,substantially as described, located at the point of contact or junctionof the said heaters and circulating system, substantially as described.

4. In a car-heating apparatus, the circulating system located within thecar and having an expansion-drum, two independent recep taclescontaining the circulating-pipes connected at each end with thecirculating system, a steam-receiving case inclosing one of the saidreceptacles, combined with a current-director located at the junction ofthe upper end of the said receivers, and the circulatingsystem,substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JAMES H. SEVVALL.

IVitnesses:

SAMUEL A. MADARY, M. L. ALLEN.

